Google has far more usage data built up over the years & a huge market share advantage over Bing in literally every global market. Microsoft's poor branding in search meant they had roughly 0 leverage in the marketplace until they launched the Bing brand. That longer experience in search is likely what gives Google the confidence to have a much deeper crawl.

Bing now is changing the table with some new webmaster tools. These new tools enable you to enjoy some cool features, such as being able to see the amount of clicks you get from Bing search, the pages crawled, the errors made in crawling pages and all of your indexed pages. They are coming back with some technical fight, so don't count them out yet. 🙂

Google and Bing are the two different search engines and the way they look in to the website and are slightly different from each other. Google give more preference to linking strategy where as Bing consider on-page optimization as more important as compare to the linking strategy.

The Google strategy in terms of SEO is a lot different from that of bing. Google has a much better social media record site than that of Bing because of YouTube. With the implementation of Google Buzz as the new social networking site of Google, Google aims to dominate and promote their website in a way that it combines all the factors that Bing..

Bing was developed by Microsoft, while Google was made by, well, Google! The main difference between these two search engines are in the way in which they rank websites. Their search algorithms are different; however because neither search engine provides details on what is involved in their ranking algorithm, there is no way to know the exact differences.

Bing results win in terms of the smoothness of its social integrations. The company's contracts with both Facebook and Twitter give it access to more social data than Google, which must rely on the lesser-used Google+ network.